scholarly journals Implementation of Brassica spp. as Trap Crops and as Beneficial Insectaries for Caterpillar Management in Cabbage Ecosystems

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 827E-827
Author(s):  
Joseph DeFrank ◽  
G.C. Luther ◽  
H. Valenzuela
Keyword(s):  
Sweet Corn ◽  
Indian Mustard ◽  
Trap Crop ◽  
Trap Crops ◽  
White Rust ◽  
Growing Seasons ◽  
Main Crop ◽  
Brassica Spp ◽  
Mustard Crop ◽  
Head Cabbage

Experiments conducted over 3 years have determined the potential of utilizing Indian mustard and `Tastie' head cabbage multi-species borders as trap crops for management of caterpillar pests of head cabbage in Hawaii. `Scorpio', a cultivar that showed less feeding damage than `Tastie', was used as the main crop. The studies point toward the use of isolated patches of multi-species attractant crops separated from the main crop by a buffer of non-host crops such as sweet corn. A sweet corn buffer was effective in preventing insect movement between plots. Initial studies showed the high susceptibility of Indian mustard to white rust (Albugo candida), to be a constraint to its use as a trap crop. Follow-up studies found that `Excel' and `Parkland' mustards may be adequate substitutes for mustard crop due to their attraction of caterpillars and their tolerance to white rust. Gradient experiments conducted on 60 × 30-m plots indicate that the trap crop may be effective for a distance of 25 to 30 m in terms of attraction of caterpillars and dispersal of beneficials into the main crop. A record was also made of growth, flowering patterns, and of beneficials hosted by 12 different Brassica cultivars during the winter and spring growing seasons.

scholarly journals 643 PB 401 TRAP CROP AND GENOTYPE EFFECT ON DIAMONDBACK MOTH POPULATION DYNAMICS IN HEAD CABBAGE

HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 524g-524
Author(s):  
Hector R. Valenzuela ◽  
Joseph DeFrank ◽  
Greg Luther
Keyword(s):  
Diamondback Moth ◽  
Indian Mustard ◽  
Trap Crop ◽  
Destructive Sampling ◽  
Moth Population ◽  
Trap Crops ◽  
Genotype Effect ◽  
Nitrogen Fertility ◽  
Head Cabbage

The diamondback moth (DBM). Plutella xylostella, is the number one pest of cabbage in the the world. The pest is resistant to most pesticides registered for its use, and resistance has also been detected in several areas for registered biopesticides. Four experiments were conducted to: 1) Determine the tolerance to DBM feeding among 20 commercial head cabbage cultivars, 2) Evaluate the effect of three nitrogen fertility levels on DBM numbers. and 3) Evaluate the effect of Indian mustard. Brassica juncea trap crops as a tool to manage DBM populations in head cabbage agroecosystems. Experiments were conducted at University of Hawaii experiment stations located in Kamuela. Hawaii, and in Kula, Maui. The trap crop treatments consisted of planting two border rows of Indian mustard in cabbage field borders. Three or 4 biweekly insect counts were conducted for each trial. Insect counts consumed of destructive sampling of 3-6 plants per plot and determination of larvae and pupae number and parasitation levels. The nitrogen studies found more DBM in monoculture cabbage receiving 300 kg Ha-1 N than in controls even though cabbage yields did not vary among treatments. A range of tolerance to DBM feeding was found among the cultivars tested. The trap crop system was shown to be more effective during the summer than in the winter months. Data indicates that the trap crop also acted as attractant for beneficial insects, which may aid in the biological control of DBM in cabbage

Evaluation of Trap Cropping for Control of Diamondback Moth (Lepidoptera: Plutellidae) in a Broccoli Production System

2020 ◽  
Vol 113 (4) ◽  
pp. 1864-1871
Author(s):  
S Sherbrooke ◽  
Y Carrière ◽  
J C Palumbo
Keyword(s):  
Plant Density ◽  
Cropping Systems ◽  
Larval Mortality ◽  
Diamondback Moth ◽  
Oviposition Preference ◽  
Indian Mustard ◽  
Trap Crop ◽  
Oviposition Choice ◽  
Trap Crops ◽  
Trap Cropping

Abstract Trap cropping, in which a trap crop is planted near a cash crop, has been used successfully for reducing pest damage in some agricultural systems. We used a meta-analysis of extensive data on two trap cropping systems, diamondback moth, Plutella xylostella (Linnaeus), exploiting cabbage and Chilo partellus (Swinhoe) (Lepidoptera: Crambidae) exploiting maize, to show that oviposition preference for, and high larval mortality on trap crops are important indicators of effectiveness of trap cropping systems. We then evaluated Indian mustard (Brassica juncea var. juncea L. Czern.) (Capparidales: Brassicaceae) and yellow rocket (Barbarea vulgaris W. T. Aiton) (Brassicales: Brassicaceae) as trap crops for protecting broccoli (Brassica oleracea var. italica Plenck) (Capparidales: Brassicaceae) against diamondback moth in Yuma, AZ, using planting configurations compatible with current practices for commercial production and without use of insecticides. In oviposition choice tests, both yellow rocket and Indian mustard were highly preferred over broccoli in the field. Furthermore, the number of larvae and pupae was significantly lower on yellow rocket and Indian mustard compared to broccoli, indicating relatively high mortality on these trap crops. Nevertheless, during the fall and spring growing seasons, no significant differences in the number of individuals on broccoli or proportion of broccoli crowns infested at harvest occurred between plots with trap crops relative to plots exclusively planted to broccoli. Thus, with the plant density and planting patterns used and without use of insecticides, there was no evidence that trap cropping was effective for reducing diamondback moth infestation of broccoli.

scholarly journals Living on the Edge: Using and Improving Trap Crops for Flea Beetle Management in Small-Scale Cropping Systems

Insects ◽  
2019 ◽  
Vol 10 (9) ◽  
pp. 286
Author(s):  
David George ◽  
Gordon Port ◽  
Rosemary Collier
Keyword(s):  
Flea Beetle ◽  
Small Scale ◽  
Feeding Damage ◽  
Trap Crop ◽  
Turnip Rape ◽  
Trap Crops ◽  
Flea Beetles ◽  
Main Crop ◽  
Beetle Damage ◽  
Companion Plants

The use of trap crops to manage pest insects offers an attractive alternative to synthetic pesticides. Trap crops may work particularly well at smaller production scales, being highly amenable where crop diversification and reduction of synthetic inputs are prioritised over yield alone. This paper describes a series of experiments. The first was to demonstrate the potential of turnip rape (Brassica rapa L., var. Pasja) as a trap crop to arrest flea beetles (Phyllotreta spp.) to protect a main crop of cauliflower (Brassica oleracea L., var. Lateman). The subsequent experiments explored two possible approaches to improve the function of the trap crop—either by separating trap and main crop plants spatially, or by introducing companion plants of tomato (Lycopersicon esculentum Mill., cv Amateur) into the main crop. In caged field experiments, feeding damage by flea beetles to crop border plantings of turnip rape far exceeded damage to cauliflower plants placed in the same position, indicating a “trap crop effect”. Neither turnip rape plants nor cauliflower as a border significantly reduced flea beetle damage to main crop cauliflower plants, although the numbers of feeding holes in these plants were lowest where a turnip rape border was used. In similar cages, leaving gaps of 3–6 m of bare soil between turnip rape and cauliflower plants significantly reduced feeding damage to the latter, as compared to when plants were adjacent. The results of a small-scale open field trial showed that a turnip rape trap crop alone reduced flea beetle damage to cauliflower, significantly so later in the season at higher pest pressures, but that addition of tomato companion plants did not improve pest control potential.

scholarly journals Irrigated trap crops impact key hemipteran pests in organic pistachio orchard

2021 ◽  
Author(s):  
Judith M. Stahl ◽  
Houston Wilson ◽  
Robert K. Straser ◽  
Jessica J. Maccaro ◽  
Kent M. Daane
Keyword(s):  
Central Valley ◽  
Organic Production ◽  
Tree Canopy ◽  
Management Tool ◽  
Trap Crop ◽  
Trap Crops ◽  
Growing Seasons ◽  
Mixed Response ◽  
Dry Down ◽  
Summer Temperatures

AbstractUsing sown groundcovers as trap crops to protect a cash crop is a traditional pest management tool. Pistachio is a major crop in California’s Central Valley, where high summer temperatures and little to no precipitation between May and November lead to summer dry-down of annual groundcover. Hemipteran pests that consist of ‘small bugs’ and ‘large bugs’ are a major contributor to nut damage, especially in organic production. In this 2-year field study, we tested the use of irrigated trap crop mixtures, sown between tree rows, to reduce those hemipteran pests’ abundance or damage. Biweekly beat samples of the tree canopy and sweep samples of the sown groundcovers in trap crop plots and resident weedy vegetation in control plots were taken over two consecutive growing seasons. Arthropod richness and abundance were highest in the groundcover and tree canopy in the trap crop plots. Small and large bug pest populations were higher and lower, respectively, in the tree canopy in trap crop plots, indicating a mixed response of these hemipterans to the presence of the trap crops. Additionally, natural enemy populations were more abundant in the tree canopy in trap crop plots than in control plots. There was no difference in nut damage between plots with and without the trap crop. These findings suggest that populations of hemipteran pests and beneficials can be manipulated successfully with irrigated trap crops, but future studies will need to focus on doing so in a way that decreases hemipteran pistachio damage.

scholarly journals INDIAN MUSTARD AS A TRAP CROP FOR INSECT PESTS OF CABBAGE ON THE TEXAS HIGH PLAINS

HortScience ◽  
1993 ◽  
Vol 28 (4) ◽  
pp. 268B-268
Author(s):  
David A. Bender ◽  
William P. Morrison
Keyword(s):  
Insect Pests ◽  
Integrated Management ◽  
Diamondback Moth ◽  
Indian Mustard ◽  
Management Program ◽  
High Plains ◽  
Trap Crop ◽  
Trap Crops ◽  
Economic Thresholds ◽  
Texas High Plains

Indian mustard trap crops have successfully reduced pesticide use on commercial cabbage in India. Diamondback moth has been a serious pest of cabbage in Texas and has demonstrated resistance to most classes of insecticides. Use of a trap crop could fit well in an integrated management program for cabbage insects, Three-row plots of spring and fall cabbage were surrounded by successive single-row plantings of Indian mustard in trials at Lubbock, Texas to determine the efficacy of interplanting for reducing insecticide applications. Insects in the cabbage and Indian mustard were counted twice weekly, and insecticides were applied selectively when economic thresholds were reached. Indian mustard was highly attractive to harlequin bugs, and protected intercropped spring cabbage. Cabbage plots without mustard required two insecticide applications to control the infestation. False chinch bugs were also highly attracted to Indian mustard. Lepidopterous larvae, including diamondback moth, did not appear to be attracted to the trap crop. Indian mustard trap crops reduced insecticide applications to spring cabbage but had no positive effect on fail cabbage.

COMBINATION OF INSECTICIDE APPLICATIONS WITH TRAP CROPS OF EARLY MATURING SOYBEAN AND SOUTHERN PEAS FOR POPULATION MANAGEMENT OF NEZARA VIRIDULA IN SOYBEAN1,2 (HEMIPTERA: PENTATOMIDAE)

1988 ◽  
Vol 23 (2) ◽  
pp. 192-199 ◽  
Author(s):  
J. W. Todd ◽  
F. W. Schumann
Keyword(s):  
Large Scale ◽  
Field Tests ◽  
Population Management ◽  
Nezara Viridula ◽  
Stink Bug ◽  
Trap Crop ◽  
Trap Crops ◽  
Stage Of Development ◽  
Main Crop ◽  
Early Maturing

Early maturing soybean, Glycine max, cultivars and southern peas, Vigna unguiculata, were used as trap crops in large scale field tests for Nezara viridula population management in soybean. In a 1979 test, the ‘Dare’ trap crop reached R5 (podfill) ca. 2 weeks prior to ‘Bragg’, and was infested with a much larger stink bug population. Southern peas and ‘Coker 156’ soybean were used in four field tests in 1981, and results indicated that insecticide treatments applied to the trap crop when the main crop ‘Bragg’ was in R3-R4 (podset) stage were applied too late, thereby allowing stink bug populations in each field to develop to high population levels. These results indicate that chemical controls should be applied to the trap crop before 5th stage nymphs change to adults with much greater dispersal capability and sexual maturity. Additionally, treatment of the trap crop should occur before the main crop enters the R3-R4 stage of development, since oviposition by female N. viridula is known to be greatly intensified in soybean in that phenological stage.

scholarly journals Trap Crops and Insectary Plants in the Order Brassicales

2018 ◽  
Vol 112 (4) ◽  
pp. 318-329 ◽  
Author(s):  
Francisco Rubén Badenes-Pérez
Keyword(s):  
Insect Pest ◽  
Diamondback Moth ◽  
Indian Mustard ◽  
Stink Bugs ◽  
Trap Crop ◽  
Pollen Beetle ◽  
Trap Crops ◽  
The Family ◽  
Euschistus Conspersus ◽  
Lobularia Maritima

Abstract This paper reviews the most important cases of trap crops and insectary plants in the order Brassicales. Most trap crops in the order Brassicales target insects that are specialist in plants belonging to this order, such as the diamondback moth, Plutella xylostella L. (Lepidoptera: Plutellidae), the pollen beetle, Meligethes aeneus Fabricius (Coleoptera: Nitidulidae), and flea beetles in the genera Phyllotreta and Psylliodes (Coleoptera: Chrysomelidae). In most cases, the mode of action of these trap crops is the preferential attraction of the insect pest for the trap crop located next to the main crop. With one exception, these trap crops in the order Brassicales have been used with brassicaceous crops. Insectary plants in the order Brassicales attract a wide variety of natural enemies, but most studies focus on their effect on aphidofagous hoverflies and parasitoids. The parasitoids benefiting from insectary plants in the order Brassicales target insects pests ranging from specialists, such as P. xylostella, to highly polyfagous, such as the stink bugs Euschistus conspersus Uhler and Thyanta pallidovirens Stål (Hemiptera: Pentatomidae). In the order Brassicales, the three most common trap crops are Indian mustard, Brassica juncea (L.) Czern, Chinese cabbage, Brassica rapa L., and yellow rocket, Barbarea vulgaris R. Br., while the three most common insectary plants are sweet alyssum, Lobularia maritima (L.) Desv., white mustard, Sinapis alba L, and B. vulgaris. Except for Tropaeolum majus L. (Tropaeolaceae) and Capparis decidua (Forssk.) Edgew. (Capparaceae), the tested trap crops and insectary plants in the order Brassicales belong to the family Brassicaceae.

scholarly journals Novel Source of Biotic Stress Resistance Identified from Brassica Species and its Wild Relatives

Proceedings ◽  
2020 ◽  
Vol 36 (1) ◽  
pp. 195
Author(s):  
Rashmi Yadav ◽  
J. Nanjundan ◽  
Ashish K. Gupta ◽  
Mahesh Rao ◽  
Jameel Akhtar ◽  
...  
Keyword(s):  
Powdery Mildew ◽  
Disease Severity ◽  
Insect Pests ◽  
Indian Mustard ◽  
Wild Relatives ◽  
Lepidium Sativum ◽  
Sclerotinia Stem Rot ◽  
Sources Of Resistance ◽  
Alternaria Blight ◽  
White Rust

In rapeseed and mustard, the major diseases (downy mildew, white rust, Alternaria blight and Sclerotinia stem rot) cause 37–47%loss in pod formation and 17–54% reduction in grain yield. The identification of new sources of resistance is a high priority in breeding programs. About 3000 germplasm accessions of Indian mustard were evaluated under multiple environments (3 seasons) at hot spots (4 locations) and under artificial epiphytophic conditions against insect pests and diseases (aphids, white rust, powdery mildew and Alternaria blight). Accessions IC265495, IC313380, EC766091, EC766133, EC766134, EC766192, EC766230, EC766272 were identified as highly resistant to white rust (A. candida) with disease severity reaction (Percent disease severity Index, PDI = 0) under artificial inoculation. Accession RDV 29 showed the inheritance of resistant source for powdery mildew in Indian mustard. Screening of brassica wild relatives (about 25 species) for white rust found that Brassica fruticulosa, Brassica tournefortii, Camelina sativa, Diplotaxis assurgens, D. catholica, D. cretacia, D. Erucoides, D. Muralis, Lepidium sativum had highly resistance (PDI = 0) to Delhi isolates of white rust. Several traits identified from cultivated and related species will be useful for genetic improvement of rapeseed and mustard.

scholarly journals Oviposition Preference of the Cabbage Root Fly towards Some Chinese Cabbage Cultivars: A Search for Future Trap Crop Candidates

Insects ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 127 ◽  
Author(s):  
Fabrice Lamy ◽  
Laura Bellec ◽  
Amélie Rusu-Stievenard ◽  
Pauline Clin ◽  
Claire Ricono ◽  
...  
Keyword(s):  
Chinese Cabbage ◽  
Management Strategies ◽  
Oviposition Preference ◽  
Delia Radicum ◽  
Field Conditions ◽  
Trap Crop ◽  
Promising Alternative ◽  
Trap Crops ◽  
Cabbage Root Fly ◽  
Highly Sensitive

The development of integrated pest management strategies becomes more and more pressing in view of potential harmful effects of synthetic pesticides on the environment and human health. A promising alternative strategy against Delia radicum is the use of trap crops. Chinese cabbage (Brassica rapa subsp. pekinensis and subsp. chinensis) is a highly sensitive Brassicaceae species previously identified as a good candidate to attract the cabbage root fly away from other crops. Here, we carried out multi-choice experiments both in the laboratory and in field conditions to measure the oviposition susceptibilities of different subspecies and cultivars of Chinese cabbages as compared to a broccoli reference. We found large differences among subspecies and cultivars of the Chinese cabbage, which received three to eleven times more eggs than the broccoli reference in field conditions. In laboratory conditions, the chinensis subspecies did not receive more eggs than the broccoli reference. We conclude that D. radicum largely prefers to lay eggs on the pekinensis subspecies of Chinese cabbage compared to the chinensis subspecies or broccoli. Some pekinensis cultivars, which received over ten times more eggs than broccoli in the field, appear especially promising candidates to further develop trap crop strategies against the cabbage root fly.

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